Rolling fine boring cutter

Abstract

The utility model discloses a rolling fine boring cutter which comprises a cutter head, the bottom of the cutter head is connected with a cutter handle, the cutter head is provided with a locking screw and a dial, a large gear is welded on the dial, the large gear is connected with a small gear in a meshed mode, and the inner wall of the small gear is fixedly connected with a supporting pin. The fine boring cutter relates to the technical field of fine boring cutters, a large gear is arranged on a dial, a small gear is used for driving the large gear to rotate so as to drive the dial to rotate, and therefore the rotating precision of the dial can be effectively improved; the corresponding hole sites are formed in the cutter handle and the inserting pin, the limiting matching clamping block is arranged on the cutter handle, the fixing connector penetrates through the cutter handle and the inserting pin, and then the fixing connector is clamped into the limiting matching clamping block, so that the cutter head and the cutter handle are more rapidly disassembled and assembled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fine boring cutter, concretely is a kind of rolling fine boring cutter. BACKGROUND

[0002] Fine boring cutter is a tool, the function is the tool that is guaranteeing hole diameter accuracy, guaranteeing position degree, roughness, roundness etc., generally fine boring cutter is with fine adjustment on machining center.

[0003] The existing fine boring cutter has the following shortcomings: when debugging tool setting gauge, manually rotate scale dial using hexagon wrench and observe the position of X-direction shadow of tool tip on magnifying shadow screen until tangent to vertical line, since manually rotating scale dial, the rotation accuracy deviation of scale dial;And after inserting and connecting between tool head and tool head, fixed by bolt, so that tool head and tool head are inconvenient to install and disassemble. UTILITY MODEL CONTENTS

[0004] In view of the problems existing in the prior art, the utility model is provided.

[0005] Therefore, the utility model aims at providing a kind of rolling fine boring cutter, solve the problems of the existing fine boring cutter: when debugging tool setting gauge, manually rotate scale dial using hexagon wrench and observe the position of X-direction shadow of tool tip on magnifying shadow screen until tangent to vertical line, since manually rotating scale dial, the rotation accuracy deviation of scale dial;And after inserting and connecting between tool head and tool head, fixed by bolt, so that tool head and tool head are inconvenient to install and disassemble.

[0006] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical scheme:

[0007] A kind of rolling fine boring cutter, including tool head, the bottom of the tool head is connected with tool handle, the tool head has locking screw and scale dial, the scale dial is welded with large gear, the large gear is engaged with pinion, the inner wall of the pinion is fixedly connected with support pin, support pin is rotatably connected between tool head and tool head by bearing.

[0008] As a preferred scheme of the utility model, a kind of rolling fine boring cutter, wherein: the pinion is welded with rotating disc, the diameter of the rotating disc is greater than the diameter of pinion.

[0009] As a preferred scheme of the utility model, a kind of rolling fine boring cutter, wherein: the top of the tool handle is provided with insertion slot, the bottom of the tool head has insertion pin, the insertion pin is inserted into insertion slot.

[0010] As a preferred scheme of the rolling precision boring cutter, the first internal thread hole is arranged on the inner wall of the two sides of the insertion groove, the second internal thread hole is arranged on the insertion pin, and the shank and the tool head are fixed through the bolt.

[0011] As a preferred scheme of the rolling precision boring cutter, the screw cap hidden groove is arranged on the shank, and the screw cap of the bolt is located in the screw cap hidden groove.

[0012] As a preferred scheme of the rolling precision boring cutter, the shank and the tool head are connected through the fixed connector.

[0013] The accommodating groove and the first special-shaped through hole in communication with the accommodating groove are arranged on the shank, the second special-shaped through hole same as the first special-shaped through hole is arranged on the first insertion pin, the groove is arranged on the shank, the limit cooperation clamping block is welded on the top wall of the groove, the fixed connector passes through the first insertion pin and the shank, and the end of the fixed connector is clamped into the limit cooperation clamping block.

[0014] As a preferred scheme of the rolling precision boring cutter, the fixed connector comprises the second insertion pin, the spring is sleeved on the second insertion pin, the clamping block is welded at the end of the second insertion pin, and the clamping block is clamped into the limit cooperation clamping block.

[0015] As a preferred scheme of the rolling precision boring cutter, the notch for the second insertion pin and the clamping block to pass through is arranged on the limit cooperation clamping block, the clamping groove is arranged on the limit cooperation clamping block, the second insertion pin passes through the shank and the first insertion pin, the clamping block is clamped into the clamping groove, and the spring is in a compressed state.

[0016] Compared with the prior art,

[0017] 1. By setting the large gear on the dial, and driving the large gear to rotate through the small gear to drive the dial to rotate, the rotation precision of the dial can be effectively improved.

[0018] 2. By arranging the corresponding hole positions on the shank and the insertion pin, arranging the limit cooperation clamping block on the shank, and then using the fixed connector to pass through the shank and the insertion pin, and then making the fixed connector clamped into the limit cooperation clamping block, the disassembly of the tool head and the shank is more rapid. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure schematic view provided for the embodiment 1 of the utility model;

[0020] Figure 2 The utility model provides an embodiment 1 provides Figure 1 The schematic view after the rotary disc is removed

[0021] Figure 3 The utility model provides an embodiment 2 provides Figure 2 The sectional view of the utility model

[0022] Figure 4 The utility model provides an embodiment 2 provides the enlarged view of fixed connector

[0023] Figure 5 The utility model provides an embodiment 2 provides the side view of limit cooperation clamping block

[0024] Figure 6 The utility model provides an embodiment 2 provides the partial side view of tool shank.

[0025] In the drawing: tool shank 1, cutter head 2, locking screw 3, dial 4, rotary disc 5, large gear 6, pinion 7, plug-in slot 8, first plug-in pin 9, second internal thread hole 91, nut hidden recess 10, bolt 11, first internal thread hole 12, containing recess 13, recess 14, limit cooperation clamping block 15, notch 151, clamping recess 152, first special-shaped through-hole 16, clamping block 17, second plug-in pin 18, spring 19. Specific implementation

[0026] To make the purpose, technical scheme and advantage of the utility model more clear, the following will combine the embodiment of the utility model with the attached drawing and make further detailed description.

[0027] Embodiment 1:

[0028] The utility model provides a kind of roll precision boring cutter, please refer to Figures 1-2 Including cutter head 2, the bottom of the cutter head 2 is connected with tool shank 1, the cutter head 2 has locking screw 3 and dial 4, the dial 4 is welded with large gear 6, the large gear 6 is engaged with pinion 7, the inner wall of pinion 7 is fixedly connected with support pin, and support pin is rotatably connected between cutter head 2 by bearing;The diameter of pinion 7 is less than the diameter of large gear 6, so as to be able to rotate by driving pinion 7, to improve the control of the rotation accuracy of large gear 6.

[0029] The cutter head 2 is welded with rotary disc 5 on the cutter head 2, and the diameter of the rotary disc 5 is greater than the diameter of the cutter head 2.

[0030] The top end of the tool shank 1 is provided with plug-in slot 8, the bottom of the cutter head 2 has first plug-in pin 9, and the first plug-in pin 9 is inserted into the plug-in slot 8.

[0031] The first inner threaded hole 12 is arranged on the inner wall of the both sides of the plug-in slot 8, the second inner threaded hole 91 is arranged on the first plug-in pin 9, and the shank 1 and the head 2 are fixed through the bolt 11.

[0032] The screw cap hidden groove 10 is arranged on the shank 1, and the screw cap of the bolt 11 is located in the screw cap hidden groove 10.

[0033] In specific use, the rotation of the small gear 7 is driven by driving the rotating disc 5 to rotate, the large gear 7 is driven by the small gear 7 to rotate, and the dial 4 is driven by the large gear to rotate, so that the rotation accuracy of the large gear is higher.

[0034] Embodiment 2

[0035] Referring to the accompanying drawings Figures 3-6 Different from embodiment 1, the shank 1 and the head 2 are connected through a fixed connector, the fixed connector comprises a second plug-in pin 18, the second plug-in pin 18 is sleeved with a spring 19, and the tail end of the second plug-in pin 18 is welded with a clamping block 17, and the clamping block 17 is clamped into the limiting matching clamping block 15.

[0036] The shank 1 is provided with the accommodating groove 13 and the first special-shaped through hole 16 which is communicated with the accommodating groove 13, the first plug-in pin 9 is provided with the second special-shaped through hole which is the same as the first special-shaped through hole 16, the center of the first special-shaped through hole 16 and the second special-shaped through hole is a circular hole, the diameter of the circular hole is equal to the diameter of the second plug-in pin 18, the circular hole is provided with the communicated rectangular through hole on the two sides, the clamping block 17 can pass through the circular hole and the rectangular through hole, the shank 1 is provided with the groove 14, the limiting matching clamping block 15 is welded on the top wall of the groove 14, the fixed connector passes through the first plug-in pin 9 and the shank 1, and the tail end of the fixed connector is clamped into the limiting matching clamping block 15.

[0037] The limiting matching clamping block 15 is provided with the notch 151 for the second plug-in pin 18 and the clamping block 17 to pass through, the limiting matching clamping block 15 is provided with the clamping recess 152, the second plug-in pin 18 passes through the shank 1 and the first plug-in pin 9, the clamping block 17 is clamped into the clamping recess 152, and the spring 19 is in a compressed state.

[0038] In specific use, the rotation of the small gear 7 is driven by driving the rotating disc 5 to rotate, the large gear 7 is driven by the small gear 7 to rotate, and the dial 4 is driven by the large gear to rotate, so that the rotation accuracy of the large gear is higher.

[0039] In the butt joint between the shank 1 and the head 2, the first plug pin 9 is inserted into the plug slot 8, the first special-shaped through hole 16 is aligned with the second special-shaped through hole at this time, the second plug pin 18 is passed through the first special-shaped through hole 16, the second special-shaped through hole and the notch 151, the second plug pin 18 is rotated to the card-in block 17 being aligned with the card-in groove 152, and the card-in block 17 is clamped into the card-in groove 152 under the elastic force of the spring 19.

[0040] Although the utility model has been described above with reference to the embodiments, various improvements can be made and equivalent parts can be replaced without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each feature in the embodiments disclosed by the utility model can be combined with each other in any way, and the description of these combinations in the specification is not exhaustive, but is only for the purpose of omitting the length and saving resources. Therefore, the utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A roll boring cutter, comprising a cutter head (2), a shank (1) connected to the bottom of the cutter head (2), the cutter head (2) having a locking screw (3) and a scale dial (4) thereon, characterized in that: The dial (4) is welded with a gear wheel (6), the gear wheel (6) is connected with a pinion (7) in engagement, the inner wall of the pinion (7) is fixedly connected with a supporting pin, and the supporting pin is rotatably connected with the tool bit (2) through a bearing.

2. A roll boring cutter according to claim 1, wherein The pinion (7) is welded with a rotating disc (5), and the diameter of the rotating disc (5) is greater than that of the pinion (7).

3. A roll boring cutter according to claim 1, wherein The top end of the tool handle (1) is provided with a plug-in slot (8), and the bottom of the tool bit (2) is provided with a first plug-in pin (9) which is inserted into the plug-in slot (8).

4. A roll boring cutter according to claim 3, wherein First inner threaded holes (12) are formed in the inner walls of the two sides of the plug-in slot (8), second inner threaded holes (91) are formed in the first plug-in pin (9), and the tool handle (1) and the tool bit (2) are fixed through bolts (11).

5. A roll boring cutter according to claim 4, wherein, A nut hiding groove (10) is formed in the tool handle (1), and the nut of the bolt (11) is located in the nut hiding groove (10).

6. A roll boring cutter according to claim 3, wherein The tool handle (1) and the tool bit (2) are connected through a fixing connector; A containing groove (13) and a first special-shaped through hole (16) which is in communication with the containing groove (13) are formed in the tool handle (1), a second special-shaped through hole which is the same as the first special-shaped through hole (16) is formed in the first plug-in pin (9), a groove (14) is formed in the tool handle (1), a limit matching clamping block (15) is welded to the top wall of the groove (14), the fixing connector passes through the first plug-in pin (9) and the tool handle (1), and the tail end of the fixing connector is clamped into the limit matching clamping block (15).

7. A roll boring cutter according to claim 6, wherein The fixing connector comprises a second plug-in pin (18), a spring (19) is sleeved on the second plug-in pin (18), and a clamping block (17) is welded to the tail end of the second plug-in pin (18), and the clamping block (17) is clamped into the limit matching clamping block (15).

8. A roll boring cutter according to claim 7, wherein, A gap (151) is formed in the limit matching clamping block (15) for the second plug-in pin (18) and the clamping block (17) to pass through, a clamping groove (152) is formed in the limit matching clamping block (15), the second plug-in pin (18) passes through the tool handle (1) and the first plug-in pin (9), the clamping block (17) is clamped into the clamping groove (152), and the spring (19) is in a compressed state.

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